2 * ========================LICENSE_START=================================
5 * Copyright (C) 2019 AT&T Intellectual Property
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 * ========================LICENSE_END===================================
21 import { CollectionViewer, DataSource } from '@angular/cdk/collections';
22 import { HttpErrorResponse } from '@angular/common/http';
23 import { MatSort } from '@angular/material';
24 import { Observable } from 'rxjs/Observable';
25 import { BehaviorSubject } from 'rxjs/BehaviorSubject';
26 import { of } from 'rxjs/observable/of';
27 import { merge } from 'rxjs';
28 import { catchError, finalize, map } from 'rxjs/operators';
29 import { V1Pod, V1PodList } from '@kubernetes/client-node';
30 import { CaasIngressService } from '../services/caas-ingress/caas-ingress.service';
31 import { NotificationService } from '../services/ui/notification.service';
33 export class CaasIngressDataSource extends DataSource<V1Pod> {
35 private relationsSubject = new BehaviorSubject<V1Pod[]>([]);
37 private loadingSubject = new BehaviorSubject<boolean>(false);
39 public loading$ = this.loadingSubject.asObservable();
41 public rowCount = 1; // hide footer during intial load
43 constructor(private caasIngressService: CaasIngressService,
44 private sort: MatSort,
45 private notificationService: NotificationService) {
49 loadTable(cluster: string, namespace: string) {
50 this.loadingSubject.next(true);
51 this.caasIngressService.getPodList(cluster, namespace)
53 catchError((her: HttpErrorResponse) => {
54 console.log('CaasIngressDataSource failed: ' + her.message);
55 this.notificationService.error('Failed to get data: ' + her.message);
58 finalize(() => this.loadingSubject.next(false))
60 .subscribe((pl: V1PodList) => {
61 this.rowCount = pl.items.length;
62 // precompute the restart count to keep HTML simple
63 for (const v1pod of pl.items) {
64 v1pod['restartCount'] = 0;
65 for (const cs of v1pod.status.containerStatuses) {
66 v1pod['restartCount'] = v1pod['restartCount'] + cs.restartCount;
69 this.relationsSubject.next(pl.items);
73 connect(collectionViewer: CollectionViewer): Observable<V1Pod[]> {
74 const dataMutations = [
75 this.relationsSubject.asObservable(),
78 return merge(...dataMutations).pipe(map(() => {
79 return this.getSortedData([...this.relationsSubject.getValue()]);
83 disconnect(collectionViewer: CollectionViewer): void {
84 this.relationsSubject.complete();
85 this.loadingSubject.complete();
88 private getSortedData(data: V1Pod[]) {
89 if (!this.sort.active || this.sort.direction === '') {
92 return data.sort((a: V1Pod, b: V1Pod) => {
93 const isAsc = this.sort.direction === 'asc';
94 switch (this.sort.active) {
95 case 'namespace': return compare(a.metadata.namespace, b.metadata.namespace, isAsc);
96 case 'name': return compare(a.metadata.name, b.metadata.name, isAsc);
97 case 'status': return compare(a.status.phase, b.status.phase, isAsc);
98 case 'containers': return compare(a.spec.containers.length, b.spec.containers.length, isAsc);
99 case 'ip': return compare(a.status.podIP, b.status.podIP, isAsc);
100 case 'restartCount': return compare(a['restartCount'], b['restartCount'], isAsc);
101 case 'createTime': return compare(a.metadata.creationTimestamp, b.metadata.creationTimestamp, isAsc);
108 function compare(a: any, b: any, isAsc: boolean) {
109 return (a < b ? -1 : 1) * (isAsc ? 1 : -1);